光回線
Noun
1
noun (common) (futsuumeishi)
optical communications line;optical network
回線
Common
Noun
1
noun (common) (futsuumeishi)
circuito
1
noun (common) (futsuumeishi)
circuit;line
この回線の細さじゃ、動画は見られないよ。
This connection is too slow for me to watch movies.